TOSA Transmitter Optical Sub Assembly

https://www.lens66.com/products/tosa-transmitter-optical-sub/

Features of TOSA Transmitter Optical Sub Assembly
One-stop customized production: Solar Valley processes TO CAN laser diode of various sizes and structures according to customer requirements, and the optical surface of the lens can be spherical and aspherical.

Transmitter Optical Subassembly Material: Use a variety of high and low refractive index optical glass and metal material coaxial shell.
TOSA transmitter optical sub assembly is mainly composed of a laser, a tube sleeve and an adapter, as well as an isolator and a regulating ring in a long-distance optical module, with a light source (semiconductor light-emitting diode or laser diode) as the core. The LD chip, monitoring photodiode (MD) and lens assembly are packaged in a compact structure (TO coaxial package or butterfly package), and the transmitter optical subassembly is mainly used for converting electrical signals into optical signals (E/O conversion). The TOSA transmitter optical subassembly usually encapsulates a microlens in a coaxial metal shell. Microlens using high temperature molding, the advantages are low production cost, high precision, suitable for aspherical microlens mass production. The transmitter optical sub assembly is one of the core components of a variety of optical systems, mainly for the conversion of electrical signals into optical signals (E/O conversion).